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From: Rob Herring <robherring2@gmail.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Rob Herring <rob.herring@linaro.org>,
	Mike Turquette <mturquette@linaro.org>,
	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
	Nishanth Menon <nm@ti.com>,
	Lists linaro-kernel <linaro-kernel@lists.linaro.org>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	"linux-arm-msm@vger.kernel.org" <linux-arm-msm@vger.kernel.org>,
	Tomasz Figa <t.figa@samsung.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Michal Simek <michal.simek@xilinx.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	Simon Horman <horms@verge.net.au>,
	Thomas P Abraham <thomas.ab@samsung.com>,
	Kukjin Kim <kgene.kim@samsung.com>,
	Arvind Chauhan <arvind.chauhan@arm.com>,
	Sachin Kamat <spk.linux@gmail.com>
Subject: Re: [PATCH 00/14] cpufreq: cpu0: Extend support beyond CPU0, V2
Date: Fri, 25 Jul 2014 09:29:09 -0500	[thread overview]
Message-ID: <CAL_JsqKqCeU0zs+rS1vxsOeh=Kuw_-gaVHtGU76Lb6TchCTytw@mail.gmail.com> (raw)
In-Reply-To: <CAKohpo=HKUkGRK4NX7E59z5QthcKbZKETB-DuP10xj3x+vdHaQ@mail.gmail.com>

On Thu, Jul 24, 2014 at 5:48 AM, Viresh Kumar <viresh.kumar@linaro.org> wrote:
> On 18 July 2014 09:47, Viresh Kumar <viresh.kumar@linaro.org> wrote:
>>> Before I apply anything in this area, I need a clear statement from the ARM
>>> people as a group on what the approach is going to be.
>
> @Rafael: The only patch which has blocked this set is:
>
> cpufreq: cpu0: Extend support beyond CPU0
>
> This is about finding which CPUs share clock line..
>
> Other patches are sort of independent of this one and cpufreq-cpu0 would
> continue to work for existing platforms if we apply these patches.
>
> I was wondering if you would like to apply other patches leaving this one?
> I will then rebase stuff again and send non-controversial patches for 3.17.
> So, that we get something in 3.17 and the last change can be merged during
> rc's as well once we finalize on bindings..
>
>> Mike/Rob/Stephen: I believe Atleast three of you should express your views
>> now :)
>
> Any idea on how can we get some temporary solution for 3.17 as we didn't
> conclude anything yet on bindings ?

A temporary solution would have to be NOT in DT because once you add
something into DT you are stuck with it for some time. You could
simply support independent clocks by looking at the platform type, but
that is still risky since you may want to define the OPP in DT
differently for the 2 cases.

The other problem with temporary solutions is once they are accepted,
people loose motivation to create the permanent solution. "Can you
take this now and I'll fix the issues later" is a red flag to
maintainers.

Rob

  reply	other threads:[~2014-07-25 14:29 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-01 16:32 [PATCH 00/14] cpufreq: cpu0: Extend support beyond CPU0, V2 Viresh Kumar
2014-07-01 16:32 ` [PATCH 01/14] of: Create of_property_match() Viresh Kumar
2014-07-01 16:32 ` [PATCH 02/14] clk: Create of_clk_shared_by_cpus() Viresh Kumar
2014-07-01 18:00   ` Stephen Boyd
2014-07-02  1:57     ` Viresh Kumar
2014-07-09 14:38   ` Santosh Shilimkar
2014-07-09 14:38     ` Santosh Shilimkar
2014-07-09 15:20     ` Viresh Kumar
     [not found]   ` <5f7164d789e87c62d722b575980c92dfd0504334.1404231535.git.viresh.kumar@linar o.org>
2014-07-28 14:01     ` Grant Likely
2014-07-28 14:01       ` Grant Likely
2014-07-01 16:32 ` [PATCH 03/14] cpufreq: Add support for per-policy driver data Viresh Kumar
2014-07-09 14:33   ` Santosh Shilimkar
2014-07-09 14:33     ` Santosh Shilimkar
2014-07-09 15:07     ` Viresh Kumar
2014-07-01 16:32 ` [PATCH 04/14] cpufreq: cpu0: Add Module Author Viresh Kumar
2014-07-09 14:42   ` Santosh Shilimkar
2014-07-09 14:42     ` Santosh Shilimkar
2014-07-09 15:08     ` Viresh Kumar
2014-07-09 15:24       ` Santosh Shilimkar
2014-07-01 16:32 ` [PATCH 05/14] cpufreq: cpu0: don't validate clock on clk_put() Viresh Kumar
2014-07-09 14:42   ` Santosh Shilimkar
2014-07-09 14:42     ` Santosh Shilimkar
2014-07-01 16:32 ` [PATCH 06/14] cpufreq: cpu0: defer probe if clock isn't registered yet Viresh Kumar
2014-07-02  5:53   ` Shawn Guo
2014-07-02  5:53     ` Shawn Guo
2014-07-02  5:55     ` Viresh Kumar
2014-07-02 11:32       ` Viresh Kumar
2014-07-03  0:38         ` Stephen Boyd
2014-07-03  2:19           ` Viresh Kumar
2014-07-09 14:43             ` Santosh Shilimkar
2014-07-09 14:43               ` Santosh Shilimkar
2014-07-01 16:32 ` [PATCH 07/14] cpufreq: cpu0: OPPs can be populated at runtime Viresh Kumar
2014-07-01 18:02   ` Stephen Boyd
2014-07-02  2:03     ` Viresh Kumar
2014-07-02  4:03   ` [PATCH V2 Resend " Viresh Kumar
2014-07-09 14:44   ` [PATCH " Santosh Shilimkar
2014-07-09 14:44     ` Santosh Shilimkar
2014-07-09 15:09     ` Viresh Kumar
2014-07-10 11:19     ` Viresh Kumar
2014-07-10 12:39       ` Nishanth Menon
2014-07-10 13:31         ` Santosh Shilimkar
2014-07-10 13:36           ` Viresh Kumar
2014-07-01 16:32 ` [PATCH 08/14] cpufreq: cpu0: use dev_{err|warn|dbg} instead of pr_{err|warn|debug} Viresh Kumar
2014-07-09 14:45   ` Santosh Shilimkar
2014-07-09 14:45     ` Santosh Shilimkar
2014-07-01 16:32 ` [PATCH 09/14] cpufreq: cpu0: Move per-cluster initialization code to ->init() Viresh Kumar
2014-07-03  0:43   ` Stephen Boyd
2014-07-03  2:11     ` Viresh Kumar
2014-07-09 14:53   ` Santosh Shilimkar
2014-07-09 14:53     ` Santosh Shilimkar
2014-07-09 15:17     ` Viresh Kumar
2014-07-09 15:26       ` Santosh Shilimkar
2014-07-09 15:27         ` Viresh Kumar
2014-07-09 15:29           ` Santosh Shilimkar
2014-07-09 15:33             ` Viresh Kumar
2014-07-01 16:32 ` [PATCH 10/14] cpufreq: cpu0: try regulators with name "cpu-supply" Viresh Kumar
2014-07-01 16:32 ` [PATCH 11/14] cpufreq: cpu0: Make allocate_resources() work for any CPU Viresh Kumar
2014-07-01 16:32 ` [PATCH 12/14] cpufreq: cpu0: Extend support beyond CPU0 Viresh Kumar
2014-07-02  4:03   ` [PATCH V2 Resend " Viresh Kumar
2014-07-01 16:32 ` [PATCH 13/14] cpufreq: cpu0: rename driver and internals to 'cpufreq_generic' Viresh Kumar
2014-07-01 16:32 ` [PATCH 14/14] cpufreq: generic: set platform_{driver|device} '.name' to 'cpufreq-generic' Viresh Kumar
2014-07-02  4:12 ` [PATCH 00/14] cpufreq: cpu0: Extend support beyond CPU0, V2 Viresh Kumar
2014-07-03  1:24   ` Stephen Boyd
2014-07-03  2:44     ` Viresh Kumar
2014-07-03 22:16       ` Mike Turquette
2014-07-04  4:21         ` Viresh Kumar
2014-07-08  4:50           ` Viresh Kumar
2014-07-09 17:41             ` Stephen Boyd
2014-07-16 16:01             ` Viresh Kumar
2014-07-16 17:28               ` Thomas Petazzoni
2014-07-16 21:17                 ` Rafael J. Wysocki
2014-07-16 21:18               ` Rafael J. Wysocki
2014-07-17  0:28                 ` Viresh Kumar
2014-07-17  7:35                   ` Thomas Petazzoni
2014-07-17  7:41                     ` Viresh Kumar
2014-07-18  1:02                       ` Rafael J. Wysocki
2014-07-18  4:17                         ` Viresh Kumar
     [not found]                           ` <CAKohpomKzK8pMJs1gv+uXxhd17HtCQyfjSnVYw9KpGz6FwbgDA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-24 10:48                             ` Viresh Kumar
2014-07-24 10:48                               ` Viresh Kumar
2014-07-25 14:29                               ` Rob Herring [this message]
     [not found]                                 ` <CAL_JsqKqCeU0zs+rS1vxsOeh=Kuw_-gaVHtGU76Lb6TchCTytw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-25 14:34                                   ` Viresh Kumar
2014-07-25 14:34                                     ` Viresh Kumar
2014-07-25 15:41                                 ` Thomas Petazzoni

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